Nightlight



FIG. 1 is a front right top isometric perspective view of a new ornamental design for a nightlight;

FIG. 2 is a front elevation view of the nightlight of FIG. 1;

FIG. 3 is a rear elevation view of the nightlight of FIG. 1; and,

FIG. 4 is a right side elevation view of the nightlight of FIG. 1, the left side elevation view being a mirror image thereof.

The broken lines shown in the drawings represent portions of the nightlight that form no part of the claimed design. 

CLAIM The ornamental design for a nightlight, as shown and described. 